Publications by authors named "V V Cheverikin"
Additive manufacturing of metallic parts by Selective Laser Melting (SLM) implies high temperature gradients and small volume of the melt bath. These conditions make the process scales close to those available for state-of-the-art massively parallel atomistic simulations. In the paper, the microscopic mechanisms responsible for the formation of primary microstructure during molten metal solidification are investigated using classical molecular dynamics (CMD).
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- The paper explores a method for improving graphene quality by synthesizing it on single-crystal copper substrates instead of polycrystalline ones, specifically on a sapphire base.
- Optimizing factors like film thickness, temperature, and annealing time leads to the formation of large copper grains with a desirable (111) orientation.
- High-quality graphene growth is verified using advanced techniques like Raman spectroscopy and scanning electron microscopy.
Article Synopsis
- * Key factors like synthesis temperature, exposure time, and charge density were analyzed, revealing that temperatures above 1200 °C and exposure times longer than 12 hours are necessary for uniform β-phase formation.
- * The findings highlight the potential of this alloy for biocompatible implants and contribute to the understanding of metallothermic synthesis in materials science, benefiting professionals in powder metallurgy.
In this work, the microstructure, phase state, texture, superelastic and mechanical properties of a Ti-18Zr-15Nb (at. %) shape memory alloy subjected to a combined thermomechanical treatment, including hot rotary forging with either air cooling or water quenching and post-deformation annealing are studied. It was revealed that the main structural component of the deformed and annealed alloy is BCC -phase.
View Article and Find Full Text PDFThree-dimensional multi-elemental mapping of composite wear-resistant coatings by laser-induced breakdown spectroscopy has been demonstrated for the first time, to the best of our knowledge. Individual clads of 1560 nickel alloy reinforced with tungsten carbide were synthesized by a co-axial laser cladding technique. Electron energy dispersive x-ray spectroscopy revealed elemental maps for major elements (W, Ni, Co, Cr, Fe) but failed to measure silicon and carbon.
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